Dust-cap.



Pi it a( iii-L .iniitri NELSEN, F BUSTOIN, MASSACHUSETTS, ASSGNOR, BY DIRECT AND MESNE SSIGNEENTS, TO A. SCHBDEES SGN, .'[NCGRPORATEQ OF BROOKLYN, NEW YGRK,

nosa-oar. i

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Application led August Tfr/1i.

To all whom may conce/m Be it known that l, Fneonaui Nieman. a subject of the King of Denmark, and resident of iioston, in the county ot' Suffolk andl State of Massachusetts, have invented certain new and usefui improvements in lust- Caps, of which the following is a specifica tion.

This invention relates to dust caps dapted to be attached to Vehicle wheels Jfor inclosinfr;A infating Valves for penun'iatic tires.

Of the accompanying drawings:

Figure l'represents a section through a wheeriin and through a dust cap attached thereto, an inlating 'valve beingshown in elevation.

Fig. 2 represents an elevation of the open end of the clust cap.

Fig'. 3 represents a side elevation, partly in section7 of the dust cap. Fig. e represents a View simiiar to l, showing a modified forni ot anchoring member secured to the wheel rim tt'or supporting the dust cap.

Fig. represents a side elevation of the anchoringl member included in Fig. 4i..

The saine reference characters' indicate the saine parts. Wherever they occur.

A wheel .rim is iudicateil at 1G, and an in flatinf valve ci well-known construction is indicated at ll. the valve extendingy through 'rauial holo .l2 in the rim and }n'( jectiv;1j;5v

if beyond 'the inner surface i3 ot the a. inwardl` ri--.

The dust cap coin@ having a eiosed end, l5 circular series of flexible spring; t 'Y The dust can` may be made ci; a si gie niece ot duotilo metai by first drawing a blank to the desired shane and then sawin slots i6 to divide the open enel into tongues as shown. These slots i5 do not extend into the body portion l, but leave a continuous circular rim l? at the open end of the body portiom the tongues adjoining the periphery oiE said rim. The anchoring member shown by Fig. l conmrises a tubular body portion 1S open at botti ends, a laterally extending external flange 197 andan intermediate annular portion connecting the {inne-e and body portion. This anchoring member may benino-.e

tu Jul-ar body lf-.L

Specification. of Letters Patent.

Patented Mair. 6, 19M.

1913. Serial No. 784,800.

of a single piece of ductile metal. The body portion is provided with an external screwtliread 21, and is screwed into the hole 12 so that it is secured to the rim by its thread. The outer end ot' the anchoring member. has a continuous circular rim which coacts with the fini 17 ot' the (lust cap for excluding tudinal movement. The tongues form a bell'V end7 their internal surfaces having ogee curvature, as indicated at 23, for facilitating the connecting operation, and for enabling them to coact with the flange 22 to hold the vrim 17 firmly against the rim at the outer end of the anchoring member. The flaring of thefree ends of the tongues causes iexure oi the tongues awayfrom each-Other While passing over the Flange 22. Duringthe attaching movement the tongues, after being apart by the Harige 22, close toward each other behind the iange, and their gripping' action upon the rear side of the iange 22 keeps the riin l? iirmly against the rim of aneliorirle,r nieznber. `When the Clust cap ttacf ed7 the spring' tongues are slightly ai apart Afrom their norniai position by the lange and hold the dust cap so firmly as to prevent rattiingg.

Figs. and show acliiferent form of anchoring member for 'counting with the saine dust cap. formeel with prongs 25 adapted to be driven into the rim i0. The prongs have converging surfaces 26 at their tips by which the prongs are flexed laterally WhileY being k li This anchoring member is driven,- witli the result 'bf clenching the` anchoring; member in the/rim. This anchoring' member has a flange 2v2X which is the Jfull equivalent ol the flange 22, and its rim 2? is continuons and coacts with the rim 17 when the dust cap is attached. rEllis anchoringr member is likewise made of ductileA mi endless series of flexible spring tongues In testimony whereof have aiiixed my ",nrrngfed t) grip a holder inserftfed therein, signature in presence of two witnesses. eac o sai tongues having an o set portion s T a adjoining the body portion of the cap, the FRLDERIK BULSLN' gapping portions of said tongues being set /Vitnes'ses:

out fromthe center of the cap in consequence W. P. ABnLL, of said offset portions. P. W. Pnzzn'r'rl. 

